Garry Newman has one of PC gaming's better-known first names — and one of its best grassroots success stories.

He may have flubbed his one job interview with Valve, but the man behind Garry's Mod is doing alright and has some thoughts about modern modding.

Newman is set up in Walsall, England, He's 28 and tinkers all the time with his world-famous prized creation. That creation, Garry's Mod, launched in late 2004 and has been a hit since then, regularly one of the 10 most-played game on Steam.

Of course, Garry's Mod isn't a game. It's a toolset, a playground for tinkering in Valve Software's Source Engine and one of the most successful gaming canvases ever released to the computer-playing public. Players who own games made with Valve's Source Engine — Half Life 2 or Team Fortress 2 — can use the mod to set up worlds, pose characters, design contraptions and do all sorts of wondrous things.

Here's a classic example from a few years ago (and several Garry's Mod iterations ago).

It was the thing he was talented enough to make. "I never started out thinking 'I will make a sandbox mod,'" he told me over e-mail this week. "I was just messing around with the Source Engine and it turned into this thing. It was mostly about letting me mess around with the Source Engine's features. … To be honest at this point I didn't really have the programming ability to make a real game on the Source Engine. Adding guns that attached things to ropes was easy compared to that."

It then became a surprise. Garry didn't realize it was popular, he said, until he "begrudgingly" set up forums for it. He didn't realize it was going to be so malleable until he added ragdoll posing and saw what people made of it.

And it's become income, a lot of income. He didn't tell me how much he's made in the four years the $10 mod has been on sale (it was free for two years before that). He did give me some numbers, so we can sort of do the math. He makes $5 when the game is bought on its own; $2.50 when it's in a bundle. 770,628 units sold lifetime, 264,350 of them since this time a year ago — which means sales are speeding up and it's safe to assume he's netted more than $1,000,000.

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It did not become a job at Valve. "I did apply for a job there a long time ago," he told me. "I got a phone interview, which I must have blew. Admittedly, I wouldn't have hired myself back then either. I knew nothing."

Garry's Favorite Mods

Over the years, people have made the most marvelous Rube Goldberg contraptions in Garry's Mod, tinkering with the set in ways that gave us great domino tumbles and the adventures of Half-Life hero Gordon Freeman's brother. Oh, and they've made good-looking Zelda stuff.

Garry's favorites? He offered five, "some" of his favorites in no particular order.

They Are Watermelons, Episode 3

Garry's take:
"We are watermelons. This is my kind of cruel humor."

Garry's Mod Club Dance Video

Garry's take:
"b-buck's dance video is kind of a classic."

Days of Asunder

Garry's take:
"Everything FancyPants does is gold."

First-Person Project: Free Runner

Garry's take:
"The first person project is pretty brutal."

War of the Servers

Garry's take:
"War of the servers is a full length movie shot in GMod."

The New Mod Era

Modding isn't what it used to be and Garry Newman sees a scene that not only has changed, but is pretty much the equivalent of making games worth being paid for.

"In the early days people were happy with really simple mods," he recalls. Faster-firing weapons, double high jumping, grappling hook, team based gamemodes etc etc. At some point (I'm guessing when proper SDK's [software development kits] started being released), the term 'mod' got to mean 'total conversion'. No-one cares unless you've got a new gamemode and every art asset has been completely re-made by your team."

That kind of work is game development, he says. "What's the difference between someone modding an engine and someone licensing an engine? There's no difference at all, it's just what you call it. A mod isn't just a mod anymore, it's a game."

Garry likes the marketplaces, sees them as a sign of modding "growing up," and he's undeterred by developers who don't make their games moddable.

"PC game modding can be pretty ironic," he says. "You've got these games with awesome SDKs, awesome level editors, and no-one gives a fuck. Then you've got games like GTA with no SDK, no easy way to change anything - and people are bending over backwards to make mods for it.

What's Next

Garry's Mod launched on the Mac last month. Mac users are creating stuff as well, though Garry isn't spotting any differences between Mac and Windows users' creativity. "If there's someone in the server on a Mac they're indistinguishable from PC players," he says. "Which is the way it's got to stay since PC gamers are assholes to Mac gamers for some reason."

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He encourages those who haven't seen Garry's Mod in a while to check it out again. He's built a "Toybox" option (pictured left) that lets users download other players' creations into Garry's Mod without having to look for add-ons on the Web yourself. That should make things more fun and even easier to create.

Garry may not have intended Garry's Mod to be anything other than a lark for himself and his friends, but he's created a hit. This is what a PC mod can do. This is the power of PC gaming where a Garry Newman, phone interview flubbed and all, can be a developer who matters — and help you be one too.